24V smart High Side Switch over-voltage and under-voltage protection with PROFET™ BTT6020-1ERA

Open online SPICE simulator circuit link: atv_bp_24V_high_side_BTT6020-1ERA_protection_OV_UV.tsc

PROFET™ Automotive Smart High-Side Switch BTT6020-1ERA:
Protection Features - Overvoltage & Undervoltage Protection

The BTT6020-1ERA is an Automotive qualified single channel Smart High-Side Power Switch
with 20 mΩ on state resistance. It is equiped with diverse protection features. Infineon’s PROFET™
protected high-side switches drive resistive, capacitive as well as inductive loads .

This circuit demonstrates the overvoltage and undervoltage protection features of the BTT6020-1ERA.
Many other PROFET™ devices provide similar protection features.

With a sweep supply voltage from 0 to 80V and back to 0V the overvoltage and undervoltage protection
features is demonstrated. The device starts switching above the minimum functional supply voltage
VS(OP)_MIN about 5V and will be shut down if it is below the undervoltage shutdown VS(UV) of 4.1V.

The drain to source will be clamped thanks to the internal clamping diode. This protection feature is
especially helpful during switching off of an inductive load.